iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
4a0079bc7a
linux/drivers/nvdimm
History
Dan Williams 4a0079bc7a nvdimm: Replace lockdep_mutex with local lock classes 
In response to an attempt to expand dev->lockdep_mutex for device_lock()
validation [1], Peter points out [2] that the lockdep API already has
the ability to assign a dedicated lock class per subsystem device-type.

Use lockdep_set_class() to override the default device_lock()
'__lockdep_no_validate__' class for each NVDIMM subsystem device-type. This
enables lockdep to detect deadlocks and recursive locking within the
device-driver core and the subsystem.

Link: https://lore.kernel.org/r/164982968798.684294.15817853329823976469.stgit@dwillia2-desk3.amr.corp.intel.com [1]
Link: https://lore.kernel.org/r/Ylf0dewci8myLvoW@hirez.programming.kicks-ass.net [2]
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/165055520896.3745911.8021255583475547548.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2022-04-28 14:01:55 -07:00
..
badrange.c mm/memremap_pages: convert to 'struct range' 2020-10-13 18:38:28 -07:00
btt_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
btt.c nvdimm-btt: use bvec_kmap_local in btt_rw_integrity 2022-03-04 12:29:21 -07:00
btt.h nvdimm-btt: convert to blk_alloc_disk/blk_cleanup_disk 2021-06-01 07:42:23 -06:00
bus.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
claim.c libnvdimm: Cleanup include of badblocks.h 2020-12-15 21:47:45 -08:00
core.c cxl for v5.16 2021-11-08 11:49:48 -08:00
dax_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
dimm_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
dimm.c libnvdimm: Make remove callback return void 2021-02-16 19:35:29 -08:00
e820.c
Kconfig nvdimm/blk: Delete the block-aperture window driver 2022-03-11 15:53:12 -08:00
label.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
label.h nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
Makefile drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set 2022-03-23 12:17:36 -07:00
namespace_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
nd_perf.c drivers/nvdimm: Fix build failure when CONFIG_PERF_EVENTS is not set 2022-03-23 12:17:36 -07:00
nd_virtio.c block: pass a block_device and opf to bio_alloc 2022-02-02 07:49:59 -07:00
nd-core.h nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
nd.h nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
of_pmem.c powerpc/pmem: Initialize pmem device on newer hardware 2020-07-16 13:00:23 +10:00
pfn_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
pfn.h libnvdimm/namespace: Enforce memremap_compat_align() 2020-03-17 12:23:21 -07:00
pmem.c dax: remove the copy_from_iter and copy_to_iter methods 2021-12-18 08:04:53 -08:00
pmem.h mm: don't include <linux/memremap.h> in <linux/mm.h> 2022-03-03 12:47:33 -05:00
region_devs.c nvdimm: Replace lockdep_mutex with local lock classes 2022-04-28 14:01:55 -07:00
region.c nvdimm/region: Delete nd_blk_region infrastructure 2022-03-11 15:53:13 -08:00
security.c libnvdimm for 5.9 2020-08-11 10:59:19 -07:00
virtio_pmem.c virtio: wrap config->reset calls 2022-01-14 18:50:52 -05:00
virtio_pmem.h